Cornelius young



(No Model.) 2 Sheets.Sneet 1.

O. YOUNG.

STUFF REGULATOR FOR PAPER MACHINES.

Patented Feb. 17

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N. PETFRS Pholo-Ldhognpmn Washinglo (No Model.)

. 2 Sh-eetsSheet 2. O. YOUNG.

STUFF REGULATOR FOR PAPER MACHINES. No. 312,314.

Patented Feb. 17

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CORNELIUS YOUNG, OF SANDY HILL, NE\V YORK, ASSIGNOR TO HOWLAND & 00., OFSAME PLACE.

STUFF-REGULATOR FOR PAPER-MACHINES.

SPECIFICATION forming part of Letters Patent No. 312,314, dated February17, 1885.

Appication filed April l5, 1864. (No model i To all whom, it mayconcern.-

Be it known that 1, CORNELIUS YOUNG, a resident of Sandy Hill, in thecounty of \Vashington and State of New York, have invented certain newand useful Improvements in Stuff- Regulators for Paper-Machines; and Ido hereby declare that the following is a full, clear, and exactdescription of the invention, that will enable others skilled in the artto which it appertains to make and use the same,

reference being had to the accompanying drawings, and to the letters ofreference marked thereon, which form a part of this specification.

Similar letters refer to similar parts in the several figures therein.

My invention relates to improvements in stutfregulators forpaper-machines; and it consists in providing an adjustable gate, the

movements of which are automatically con trolled by the movements of abalanced stuffchute, and in providing the stuff-box with avertically-sliding gate.

The object of my invention is to regulate the flow ofpulp or stuff fromthe stuff-box to the paper-machine proper.

Figure l of the drawings is a plan view of a stuff-box provided with myimproved de vice. Fig. 2 is a vertical section of same taken at brokenline .90 y in Fig. 1. Fig. 3 is a front elevation of same, with part offront wall broken away to show gate I closed. Fig. i is same showinggate I open. Fig. 5 is a perspective of gate I and pivoted arms.

5 The box is divided by partitions A, B, and

G into four compartments. One of the compartments is provided with oneor more apertures, c e, in the bottom,'through which the stuff is forcedby a pump into the box, until 0 the compartment is filled to the top ofpartition 0, when it flows over between G and D into the nextcompartment, which retains the stuff until filled to the top ofpartition B,

which extends across the box from block T to 5 block T, the blocksserving to narrow the compartment on the side next the partition B. Whenthis compartment is filled, the stuff flows over partition B, oneportion entering the chute H, from which it is conveyed to thepaper-machine proper, and the other portion into the compartmentprovided with outlet g, through which it flows back to the reservoirfrom which it was originally pumped into the box. The thickness andweight of paper produced depend upon the thickness and rapidity of flowof stuff to the machine. As the thickness or quality of stuff is notsubject to absolute control, uniformity in the weight of paper producedmust be secured by subjecting the rapidity of flow to the quality of thestuff. Such, control has been heretofore attempted in various waysbymeans of valves or adjustable gates controlled by an attendant or byfloats and balances.

I make use of an adjustable gate, I, attached 6 to one side of the boxby means of the parallel arms a a, which are pivoted one end to the gateand the other end to the block T, so that when the gate is lifted ittravels horizontally away from the side of the box to which the arms arepivoted, and when it is allowed to fall it travels toward said sideofthe box. I also use another adjustable ate, G, supported by rod 0, onwhich it is adapted to slide to and fro between the blocks TT, the lowerendvofthe gate resting upon the upper edge of partition B, or a metallicstrip, in, projecting therefrom. The gate is also provided with athreaded arm passing through stop a, fixed upon rod c,havingadjusting-nuts a, by means of which the gate may be secured in differentpositions. By sliding gate G toward gate I the opening 0 is diminishedin size, and less stuff will flow to the machine, the opening I) will beincreased in size, and more stuff will escape by 8 outlet By slidinggate G in the opposite direction toward opening b more stufi' is allowedto flow to the machine and less back to the stuff-reservoir throughoutlet 9. The gate G is therefore first set at the proper point to 0make paper of the desired weight with a constant flow of the stuff to beused,provided the flow is even in quantity; but experience shows theimpossibility of securing such a flow. The pump forces a constantquantity 5 into the box; but the thickness-i. 6., the relative quantityof pulp and water-varies continually. When the stuff flows thick, moreof it must be held back from the machine, and diverted to the outlet 9,and when it flows thin [00 a greater supply must be sent to the machine.I upward about half the height of the box, and

This I am able to accomplish by means of the gate I, which is connectedby link P with one end of sweep O, the other end of the sweep beingconnected by link Q and bail R with the chute H at one end, the otherend of the chute being hinged upon partition B directly beneaththeopening C, so that the stuff which goes to the machine passes throughthe chute. The weight of the stuff in the chute will depress itsprojecting end,which raises the gate I and, as before explained, narrowsthe opening 0. By means of the weight W, adapted to slide upon the sweepO, and the spring S the gravity of the stuff in the hinged chute may bebalanced to secure the desired width of opening 0. After the respectiveparts have been once adjusted to producepaper ofa given weight from aconstant flow of stuff of known average quality they will thereafter beauto matically adjusted to the varying quality of stuff as the latterpasses through and from the stulf-box. If the stuff suddenly thick ens,its progress upon the chute is slower, and it dams up, as it were,thereon. The additional weight overcomes the force of the spring S, andthe gate I is elevated and forced toward opening 0 to close the latter,which forces a larger proportion of the stuff through opening b, andadmits a smaller quantity to the chute and machine. If the stuff isthinner than the average, it flows more readily from the chute, leavinga less and lighter quantity thereon, which lowers the gate and widensthe opening 0 and permits a larger flow of stuff to the chute andmachine.

Fig.' 3 shows the gate closed to narrow opening 0', and Fig. 4 shows thegate opened to widen opening 0.

In Fig. 2 I have shown the link Q in two slotted lapping parts, whichpermits of its longitudinal adjustment by means of the thumbscrew q. Thespring S is also attached to its supporting-arm L by a threaded rod,which permits of the adjustment of the spring by thumb-screw t.

I have shown sweep O pivoted at the arm 3 butit may be pivoted at arm 13instead, through another aperture in the sweep, to change the leverageof chute and'gate.

In Figs. 3 and4 I have shown the supporting-arm d vertically adjustableupon the upright K by means of set-screw a.

To prevent a sudden rush of thick pulp upon the chute, which might causeit to overflow, I provide the partitions D and O, the latter extendingfrom the bot-tom of the box the former being situated a little one sideof the latter and extending both above and below the I top of 0. It canbe slid vertically in grooves V in the sides of the box.

\Vhen the stuff is of the usual thickness, it

flows through the aperture between D and O, and does not attain a levelmuch above the top ofoutlet-partitionB or m,- but if aconsiderablequantity of thick stuff is suddenly forced into the compartment D itwill not run so freely between D and G, and rises in the compartment Duntil the stufl' runs thinner, or until its height afiords suificientpressure to force it through the opening.

By raising or lowering the sliding partition D the narrow openingbetween it and C is lengthened or shortened, which gives it moreresistance when lengthened and less when shortened. I am thus able tosecure a perfect adjustment of the flow of stuff to the machineautomatically and produce an even quality of paper.

\Vhat I claim as new, and desire to secure by Letters-Patent, is-

I. A stuff-box provided with two outlets, one having a pivoted gate andleading to a paper-machine and the other to the stu fl -reservoir, incombination with said pivoted gate, a hinged spring-controlled chutewhich re ceives and transmits the stud in its passage from said box tosaid machine, a pivoted sweep, and connecting-links by which said chuteacts upon said gate, all substantially as described, and for thepurposes set forth.

2. A stuff-box provided with one or more inlets, e, at or near itsbottom, and an outlet, 0, about midway between its top and bottom, incombination with fixed partition 0, located between said outlet andinlets, extending upward to about the same level occupied by saidoutlet, the vertically-sliding partition D, slightly removed frompartition 0, and parallel therewith, and the channel E between saidpartitions, substantially as and for the purposes set forth.

3. In a stuff-box, the combination of an adjustable sliding gate, G,adjustable gate I, a hinged spring-controlled chute, H, lever O, andconnecting'links P and Q, substantially as and for the purposes setforth.

In testimony whereof I have hereunto set my hand this 8d. day of April,1884.

CORNELIUS YOUNG.

Witnesses:

L. B. BRooKs, JOHN I-IARFORD.

